Shelby Alvarez, the 26-year-old Chico Woman will be sent for a diagnostic evaluation in state prison over her conviction of gross vehicular manslaughter while intoxicated for a head-on collision on Highway 99 freeway in Chico from December last year. Butte County DA Mike Ramsey said after the evaluation the judge will receive a report from prison experts who will recommend whether she is suitable for prison or whether she merits a chance on probation.